vmstat.c revision 1.40
1 /* $NetBSD: vmstat.c,v 1.40 2002/08/01 23:36:55 christos Exp $ */ 2 3 /*- 4 * Copyright (c) 1983, 1989, 1992, 1993 5 * The Regents of the University of California. All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. All advertising materials mentioning features or use of this software 16 * must display the following acknowledgement: 17 * This product includes software developed by the University of 18 * California, Berkeley and its contributors. 19 * 4. Neither the name of the University nor the names of its contributors 20 * may be used to endorse or promote products derived from this software 21 * without specific prior written permission. 22 * 23 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 26 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 33 * SUCH DAMAGE. 34 */ 35 36 #include <sys/cdefs.h> 37 #ifndef lint 38 #if 0 39 static char sccsid[] = "@(#)vmstat.c 8.2 (Berkeley) 1/12/94"; 40 #endif 41 __RCSID("$NetBSD: vmstat.c,v 1.40 2002/08/01 23:36:55 christos Exp $"); 42 #endif /* not lint */ 43 44 /* 45 * Cursed vmstat -- from Robert Elz. 46 */ 47 48 #include <sys/param.h> 49 #include <sys/dkstat.h> 50 #include <sys/user.h> 51 #include <sys/namei.h> 52 #include <sys/sysctl.h> 53 54 #include <uvm/uvm_extern.h> 55 56 #include <stdlib.h> 57 #include <string.h> 58 59 #include "systat.h" 60 #include "extern.h" 61 #include "dkstats.h" 62 #include "utmpentry.h" 63 64 static struct Info { 65 struct uvmexp_sysctl uvmexp; 66 struct vmtotal Total; 67 struct nchstats nchstats; 68 long nchcount; 69 long *intrcnt; 70 } s, s1, s2, z; 71 72 #define cnt s.Cnt 73 #define oldcnt s1.Cnt 74 #define total s.Total 75 #define nchtotal s.nchstats 76 #define oldnchtotal s1.nchstats 77 78 static enum state { BOOT, TIME, RUN } state = TIME; 79 80 static void allocinfo(struct Info *); 81 static void copyinfo(struct Info *, struct Info *); 82 static float cputime(int); 83 static void dinfo(int, int); 84 static void getinfo(struct Info *, enum state); 85 static void putint(int, int, int, int); 86 static void putfloat(double, int, int, int, int, int); 87 static int ucount(void); 88 89 static char buf[26]; 90 static u_int64_t t; 91 static double etime; 92 static float hertz; 93 static int nintr; 94 static long *intrloc; 95 static char **intrname; 96 static int nextintsrow; 97 98 WINDOW * 99 openvmstat(void) 100 { 101 return (stdscr); 102 } 103 104 void 105 closevmstat(WINDOW *w) 106 { 107 108 if (w == NULL) 109 return; 110 wclear(w); 111 wrefresh(w); 112 } 113 114 115 static struct nlist namelist[] = { 116 #define X_NCHSTATS 0 117 { "_nchstats" }, 118 #define X_INTRNAMES 1 119 { "_intrnames" }, 120 #define X_EINTRNAMES 2 121 { "_eintrnames" }, 122 #define X_INTRCNT 3 123 { "_intrcnt" }, 124 #define X_EINTRCNT 4 125 { "_eintrcnt" }, 126 { "" }, 127 }; 128 129 /* 130 * These constants define where the major pieces are laid out 131 */ 132 #define STATROW 0 /* uses 1 row and 68 cols */ 133 #define STATCOL 2 134 #define MEMROW 2 /* uses 4 rows and 31 cols */ 135 #define MEMCOL 0 136 #define PAGEROW 2 /* uses 4 rows and 26 cols */ 137 #define PAGECOL 36 138 #define INTSROW 2 /* uses all rows to bottom and 17 cols */ 139 #define INTSCOL 63 140 #define PROCSROW 7 /* uses 2 rows and 20 cols */ 141 #define PROCSCOL 0 142 #define GENSTATROW 7 /* uses 2 rows and 30 cols */ 143 #define GENSTATCOL 18 144 #define VMSTATROW 7 /* uses 17 rows and 12 cols */ 145 #define VMSTATCOL 48 146 #define GRAPHROW 10 /* uses 3 rows and 51 cols */ 147 #define GRAPHCOL 0 148 #define NAMEIROW 14 /* uses 3 rows and 38 cols */ 149 #define NAMEICOL 0 150 #define DISKROW 18 /* uses 5 rows and 50 cols (for 9 drives) */ 151 #define DISKCOL 0 152 153 #define DRIVESPACE 9 /* max # for space */ 154 155 #if DK_NDRIVE > DRIVESPACE 156 #define MAXDRIVES DRIVESPACE /* max # to display */ 157 #else 158 #define MAXDRIVES DK_NDRIVE /* max # to display */ 159 #endif 160 161 int 162 initvmstat(void) 163 { 164 char *intrnamebuf, *cp; 165 int i; 166 static int once = 0; 167 168 if (namelist[0].n_type == 0) { 169 if (kvm_nlist(kd, namelist)) { 170 nlisterr(namelist); 171 return(0); 172 } 173 if (namelist[0].n_type == 0) { 174 error("No namelist"); 175 return(0); 176 } 177 } 178 hertz = stathz ? stathz : hz; 179 if (! dkinit(1)) 180 return(0); 181 if (dk_ndrive && !once) { 182 #define allocate(e, t) \ 183 s./**/e = (t *)calloc(dk_ndrive, sizeof (t)); \ 184 s1./**/e = (t *)calloc(dk_ndrive, sizeof (t)); \ 185 s2./**/e = (t *)calloc(dk_ndrive, sizeof (t)); \ 186 z./**/e = (t *)calloc(dk_ndrive, sizeof (t)); 187 once = 1; 188 #undef allocate 189 } 190 if (nintr == 0) { 191 nintr = (namelist[X_EINTRCNT].n_value - 192 namelist[X_INTRCNT].n_value) / sizeof (long); 193 intrloc = calloc(nintr, sizeof (long)); 194 intrname = calloc(nintr, sizeof (long)); 195 intrnamebuf = malloc(namelist[X_EINTRNAMES].n_value - 196 namelist[X_INTRNAMES].n_value); 197 if (intrnamebuf == NULL || intrname == 0 || intrloc == 0) { 198 error("Out of memory\n"); 199 if (intrnamebuf) 200 free(intrnamebuf); 201 if (intrname) 202 free(intrname); 203 if (intrloc) 204 free(intrloc); 205 nintr = 0; 206 return(0); 207 } 208 NREAD(X_INTRNAMES, intrnamebuf, NVAL(X_EINTRNAMES) - 209 NVAL(X_INTRNAMES)); 210 for (cp = intrnamebuf, i = 0; i < nintr; i++) { 211 intrname[i] = cp; 212 cp += strlen(cp) + 1; 213 } 214 nextintsrow = INTSROW + 2; 215 allocinfo(&s); 216 allocinfo(&s1); 217 allocinfo(&s2); 218 allocinfo(&z); 219 } 220 getinfo(&s2, RUN); 221 copyinfo(&s2, &s1); 222 return(1); 223 } 224 225 void 226 fetchvmstat(void) 227 { 228 time_t now; 229 230 time(&now); 231 strcpy(buf, ctime(&now)); 232 buf[19] = '\0'; 233 getinfo(&s, state); 234 } 235 236 void 237 labelvmstat(void) 238 { 239 int i, j; 240 241 clear(); 242 mvprintw(STATROW, STATCOL + 4, "users Load"); 243 mvprintw(MEMROW, MEMCOL, " memory totals (in KB)"); 244 mvprintw(MEMROW + 1, MEMCOL, " real virtual free"); 245 mvprintw(MEMROW + 2, MEMCOL, "Active"); 246 mvprintw(MEMROW + 3, MEMCOL, "All"); 247 248 mvprintw(PAGEROW, PAGECOL, " PAGING SWAPPING "); 249 mvprintw(PAGEROW + 1, PAGECOL, " in out in out "); 250 mvprintw(PAGEROW + 2, PAGECOL, "ops"); 251 mvprintw(PAGEROW + 3, PAGECOL, "pages"); 252 253 mvprintw(INTSROW, INTSCOL + 3, " Interrupts"); 254 mvprintw(INTSROW + 1, INTSCOL + 9, "total"); 255 256 mvprintw(VMSTATROW + 0, VMSTATCOL + 10, "forks"); 257 mvprintw(VMSTATROW + 1, VMSTATCOL + 10, "fkppw"); 258 mvprintw(VMSTATROW + 2, VMSTATCOL + 10, "fksvm"); 259 mvprintw(VMSTATROW + 3, VMSTATCOL + 10, "pwait"); 260 mvprintw(VMSTATROW + 4, VMSTATCOL + 10, "relck"); 261 mvprintw(VMSTATROW + 5, VMSTATCOL + 10, "rlkok"); 262 mvprintw(VMSTATROW + 6, VMSTATCOL + 10, "noram"); 263 mvprintw(VMSTATROW + 7, VMSTATCOL + 10, "ndcpy"); 264 mvprintw(VMSTATROW + 8, VMSTATCOL + 10, "fltcp"); 265 mvprintw(VMSTATROW + 9, VMSTATCOL + 10, "zfod"); 266 mvprintw(VMSTATROW + 10, VMSTATCOL + 10, "cow"); 267 mvprintw(VMSTATROW + 11, VMSTATCOL + 10, "fmin"); 268 mvprintw(VMSTATROW + 12, VMSTATCOL + 10, "ftarg"); 269 mvprintw(VMSTATROW + 13, VMSTATCOL + 10, "itarg"); 270 mvprintw(VMSTATROW + 14, VMSTATCOL + 10, "wired"); 271 mvprintw(VMSTATROW + 15, VMSTATCOL + 10, "pdfre"); 272 if (LINES - 1 > VMSTATROW + 16) 273 mvprintw(VMSTATROW + 16, VMSTATCOL + 10, "pdscn"); 274 275 mvprintw(GENSTATROW, GENSTATCOL, " Csw Trp Sys Int Sof Flt"); 276 277 mvprintw(GRAPHROW, GRAPHCOL, 278 " . %% Sy . %% Us . %% Ni . %% In . %% Id"); 279 mvprintw(PROCSROW, PROCSCOL, "Proc:r d s w"); 280 mvprintw(GRAPHROW + 1, GRAPHCOL, 281 "| | | | | | | | | | |"); 282 283 mvprintw(NAMEIROW, NAMEICOL, "Namei Sys-cache Proc-cache"); 284 mvprintw(NAMEIROW + 1, NAMEICOL, 285 " Calls hits %% hits %%"); 286 mvprintw(DISKROW, DISKCOL, "Discs"); 287 mvprintw(DISKROW + 1, DISKCOL, "seeks"); 288 mvprintw(DISKROW + 2, DISKCOL, "xfers"); 289 mvprintw(DISKROW + 3, DISKCOL, "Kbyte"); 290 mvprintw(DISKROW + 4, DISKCOL, "%%busy"); 291 j = 0; 292 for (i = 0; i < dk_ndrive && j < MAXDRIVES; i++) 293 if (dk_select[i]) { 294 mvprintw(DISKROW, DISKCOL + 5 + 5 * j, 295 " %4.4s", dr_name[j]); 296 j++; 297 } 298 for (i = 0; i < nintr; i++) { 299 if (intrloc[i] == 0) 300 continue; 301 mvprintw(intrloc[i], INTSCOL + 9, "%-8.8s", intrname[i]); 302 } 303 } 304 305 #define X(fld) {t=s.fld[i]; s.fld[i]-=s1.fld[i]; if(state==TIME) s1.fld[i]=t;} 306 #define Y(fld) {t = s.fld; s.fld -= s1.fld; if(state == TIME) s1.fld = t;} 307 #define Z(fld) {t = s.nchstats.fld; s.nchstats.fld -= s1.nchstats.fld; \ 308 if(state == TIME) s1.nchstats.fld = t;} 309 #define PUTRATE(fld, l, c, w) {Y(fld); putint((int)((float)s.fld/etime + 0.5), l, c, w);} 310 #define MAXFAIL 5 311 312 static char cpuchar[CPUSTATES] = { '=' , '>', '-', '%', ' ' }; 313 static char cpuorder[CPUSTATES] = { CP_SYS, CP_USER, CP_NICE, CP_INTR, CP_IDLE }; 314 315 void 316 showvmstat(void) 317 { 318 float f1, f2; 319 int psiz, inttotal; 320 int i, l, c; 321 static int failcnt = 0; 322 323 if (state == TIME) 324 dkswap(); 325 etime = cur.cp_etime; 326 if ((etime * hertz) < 1.0) { /* < 5 ticks - ignore this trash */ 327 if (failcnt++ >= MAXFAIL) { 328 clear(); 329 mvprintw(2, 10, "The alternate system clock has died!"); 330 mvprintw(3, 10, "Reverting to ``pigs'' display."); 331 move(CMDLINE, 0); 332 refresh(); 333 failcnt = 0; 334 sleep(5); 335 command("pigs"); 336 } 337 return; 338 } 339 failcnt = 0; 340 inttotal = 0; 341 for (i = 0; i < nintr; i++) { 342 if (s.intrcnt[i] == 0) 343 continue; 344 if (intrloc[i] == 0) { 345 if (nextintsrow == LINES) 346 continue; 347 intrloc[i] = nextintsrow++; 348 mvprintw(intrloc[i], INTSCOL + 9, "%-8.8s", 349 intrname[i]); 350 } 351 X(intrcnt); 352 l = (int)((float)s.intrcnt[i]/etime + 0.5); 353 inttotal += l; 354 putint(l, intrloc[i], INTSCOL, 8); 355 } 356 putint(inttotal, INTSROW + 1, INTSCOL, 8); 357 Z(ncs_goodhits); Z(ncs_badhits); Z(ncs_miss); 358 Z(ncs_long); Z(ncs_pass2); Z(ncs_2passes); 359 s.nchcount = nchtotal.ncs_goodhits + nchtotal.ncs_badhits + 360 nchtotal.ncs_miss + nchtotal.ncs_long; 361 if (state == TIME) 362 s1.nchcount = s.nchcount; 363 364 psiz = 0; 365 f2 = 0.0; 366 367 /* 368 * Last CPU state not calculated yet. 369 */ 370 for (c = 0; c < CPUSTATES; c++) { 371 i = cpuorder[c]; 372 f1 = cputime(i); 373 f2 += f1; 374 l = (int) ((f2 + 1.0) / 2.0) - psiz; 375 if (c == 0) 376 putfloat(f1, GRAPHROW, GRAPHCOL + 1, 5, 1, 0); 377 else 378 putfloat(f1, GRAPHROW, GRAPHCOL + 10 * c + 1, 5, 1, 0); 379 mvhline(GRAPHROW + 2, psiz, cpuchar[c], l); 380 psiz += l; 381 } 382 383 putint(ucount(), STATROW, STATCOL, 3); 384 putfloat(avenrun[0], STATROW, STATCOL + 17, 6, 2, 0); 385 putfloat(avenrun[1], STATROW, STATCOL + 23, 6, 2, 0); 386 putfloat(avenrun[2], STATROW, STATCOL + 29, 6, 2, 0); 387 mvaddstr(STATROW, STATCOL + 53, buf); 388 #define pgtokb(pg) ((pg) * (s.uvmexp.pagesize / 1024)) 389 390 putint(pgtokb(s.uvmexp.active), MEMROW + 2, MEMCOL + 6, 7); 391 putint(pgtokb(s.uvmexp.active + s.uvmexp.swpginuse), /* XXX */ 392 MEMROW + 2, MEMCOL + 16, 7); 393 putint(pgtokb(s.uvmexp.npages - s.uvmexp.free), MEMROW + 3, MEMCOL + 6, 7); 394 putint(pgtokb(s.uvmexp.npages - s.uvmexp.free + s.uvmexp.swpginuse), 395 MEMROW + 3, MEMCOL + 16, 7); 396 putint(pgtokb(s.uvmexp.free), MEMROW + 2, MEMCOL + 24, 7); 397 putint(pgtokb(s.uvmexp.free + s.uvmexp.swpages - s.uvmexp.swpginuse), 398 MEMROW + 3, MEMCOL + 24, 7); 399 putint(total.t_rq - 1, PROCSROW + 1, PROCSCOL + 3, 3); 400 putint(total.t_dw, PROCSROW + 1, PROCSCOL + 6, 3); 401 putint(total.t_sl, PROCSROW + 1, PROCSCOL + 9, 3); 402 putint(total.t_sw, PROCSROW + 1, PROCSCOL + 12, 3); 403 PUTRATE(uvmexp.forks, VMSTATROW + 0, VMSTATCOL + 3, 6); 404 PUTRATE(uvmexp.forks_ppwait, VMSTATROW + 1, VMSTATCOL + 3, 6); 405 PUTRATE(uvmexp.forks_sharevm, VMSTATROW + 2, VMSTATCOL + 3, 6); 406 PUTRATE(uvmexp.fltpgwait, VMSTATROW + 3, VMSTATCOL + 4, 5); 407 PUTRATE(uvmexp.fltrelck, VMSTATROW + 4, VMSTATCOL + 3, 6); 408 PUTRATE(uvmexp.fltrelckok, VMSTATROW + 5, VMSTATCOL + 3, 6); 409 PUTRATE(uvmexp.fltnoram, VMSTATROW + 6, VMSTATCOL + 3, 6); 410 PUTRATE(uvmexp.fltamcopy, VMSTATROW + 7, VMSTATCOL + 3, 6); 411 PUTRATE(uvmexp.flt_prcopy, VMSTATROW + 8, VMSTATCOL + 3, 6); 412 PUTRATE(uvmexp.flt_przero, VMSTATROW + 9, VMSTATCOL + 3, 6); 413 PUTRATE(uvmexp.flt_acow, VMSTATROW + 10, VMSTATCOL, 9); 414 putint(s.uvmexp.freemin, VMSTATROW + 11, VMSTATCOL, 9); 415 putint(s.uvmexp.freetarg, VMSTATROW + 12, VMSTATCOL, 9); 416 putint(s.uvmexp.inactarg, VMSTATROW + 13, VMSTATCOL, 9); 417 putint(s.uvmexp.wired, VMSTATROW + 14, VMSTATCOL, 9); 418 PUTRATE(uvmexp.pdfreed, VMSTATROW + 15, VMSTATCOL, 9); 419 if (LINES - 1 > VMSTATROW + 16) 420 PUTRATE(uvmexp.pdscans, VMSTATROW + 16, VMSTATCOL, 9); 421 422 PUTRATE(uvmexp.pageins, PAGEROW + 2, PAGECOL + 5, 5); 423 PUTRATE(uvmexp.pdpageouts, PAGEROW + 2, PAGECOL + 10, 5); 424 PUTRATE(uvmexp.swapins, PAGEROW + 2, PAGECOL + 15, 5); 425 PUTRATE(uvmexp.swapouts, PAGEROW + 2, PAGECOL + 20, 5); 426 PUTRATE(uvmexp.pgswapin, PAGEROW + 3, PAGECOL + 5, 5); 427 PUTRATE(uvmexp.pgswapout, PAGEROW + 3, PAGECOL + 10, 5); 428 429 PUTRATE(uvmexp.swtch, GENSTATROW + 1, GENSTATCOL, 4); 430 PUTRATE(uvmexp.traps, GENSTATROW + 1, GENSTATCOL + 4, 6); 431 PUTRATE(uvmexp.syscalls, GENSTATROW + 1, GENSTATCOL + 10, 6); 432 PUTRATE(uvmexp.intrs, GENSTATROW + 1, GENSTATCOL + 16, 5); 433 PUTRATE(uvmexp.softs, GENSTATROW + 1, GENSTATCOL + 21, 5); 434 PUTRATE(uvmexp.faults, GENSTATROW + 1, GENSTATCOL + 26, 6); 435 mvprintw(DISKROW, DISKCOL + 5, " "); 436 for (i = 0, c = 0; i < dk_ndrive && c < MAXDRIVES; i++) 437 if (dk_select[i]) { 438 mvprintw(DISKROW, DISKCOL + 5 + 5 * c, 439 " %4.4s", dr_name[i]); 440 dinfo(i, ++c); 441 } 442 putint(s.nchcount, NAMEIROW + 2, NAMEICOL, 9); 443 putint(nchtotal.ncs_goodhits, NAMEIROW + 2, NAMEICOL + 9, 9); 444 #define nz(x) ((x) ? (x) : 1) 445 putfloat(nchtotal.ncs_goodhits * 100.0 / nz(s.nchcount), 446 NAMEIROW + 2, NAMEICOL + 19, 4, 0, 1); 447 putint(nchtotal.ncs_pass2, NAMEIROW + 2, NAMEICOL + 23, 9); 448 putfloat(nchtotal.ncs_pass2 * 100.0 / nz(s.nchcount), 449 NAMEIROW + 2, NAMEICOL + 34, 4, 0, 1); 450 #undef nz 451 } 452 453 void 454 vmstat_boot(char *args) 455 { 456 copyinfo(&z, &s1); 457 state = BOOT; 458 } 459 460 void 461 vmstat_run(char *args) 462 { 463 copyinfo(&s1, &s2); 464 state = RUN; 465 } 466 467 void 468 vmstat_time (args) 469 char * args; 470 { 471 state = TIME; 472 } 473 474 void 475 vmstat_zero(char *args) 476 { 477 if (state == RUN) 478 getinfo(&s1, RUN); 479 } 480 481 /* calculate number of users on the system */ 482 static int 483 ucount(void) 484 { 485 static int onusers = -1; 486 static struct utmpentry *oehead = NULL; 487 int nusers = 0; 488 struct utmpentry *ehead; 489 490 nusers = getutentries(NULL, &ehead); 491 if (oehead != ehead) { 492 freeutentries(oehead); 493 oehead = ehead; 494 } 495 496 if (nusers != onusers) { 497 if (nusers == 1) 498 mvprintw(STATROW, STATCOL + 8, " "); 499 else 500 mvprintw(STATROW, STATCOL + 8, "s"); 501 } 502 onusers = nusers; 503 return (nusers); 504 } 505 506 static float 507 cputime(int indx) 508 { 509 double t; 510 int i; 511 512 t = 0; 513 for (i = 0; i < CPUSTATES; i++) 514 t += cur.cp_time[i]; 515 if (t == 0.0) 516 t = 1.0; 517 return (cur.cp_time[indx] * 100.0 / t); 518 } 519 520 static void 521 putint(int n, int l, int c, int w) 522 { 523 char b[128]; 524 525 move(l, c); 526 if (n == 0) { 527 hline(' ', w); 528 return; 529 } 530 (void)snprintf(b, sizeof b, "%*d", w, n); 531 if (strlen(b) > w) { 532 hline('*', w); 533 return; 534 } 535 addstr(b); 536 } 537 538 static void 539 putfloat(double f, int l, int c, int w, int d, int nz) 540 { 541 char b[128]; 542 543 move(l, c); 544 if (nz && f == 0.0) { 545 hline(' ', w); 546 return; 547 } 548 (void)snprintf(b, sizeof b, "%*.*f", w, d, f); 549 if (strlen(b) > w) { 550 hline('*', w); 551 return; 552 } 553 addstr(b); 554 } 555 556 static void 557 getinfo(struct Info *s, enum state st) 558 { 559 int mib[2]; 560 size_t size; 561 562 dkreadstats(); 563 NREAD(X_NCHSTATS, &s->nchstats, sizeof s->nchstats); 564 NREAD(X_INTRCNT, s->intrcnt, nintr * LONG); 565 size = sizeof(s->uvmexp); 566 mib[0] = CTL_VM; 567 mib[1] = VM_UVMEXP2; 568 if (sysctl(mib, 2, &s->uvmexp, &size, NULL, 0) < 0) { 569 error("can't get uvmexp: %s\n", strerror(errno)); 570 memset(&s->uvmexp, 0, sizeof(s->uvmexp)); 571 } 572 size = sizeof(s->Total); 573 mib[0] = CTL_VM; 574 mib[1] = VM_METER; 575 if (sysctl(mib, 2, &s->Total, &size, NULL, 0) < 0) { 576 error("Can't get kernel info: %s\n", strerror(errno)); 577 memset(&s->Total, 0, sizeof(s->Total)); 578 } 579 } 580 581 static void 582 allocinfo(struct Info *s) 583 { 584 585 if ((s->intrcnt = malloc(nintr * sizeof(long))) == NULL) { 586 error("malloc failed"); 587 die(0); 588 } 589 } 590 591 static void 592 copyinfo(struct Info *from, struct Info *to) 593 { 594 long *intrcnt; 595 596 intrcnt = to->intrcnt; 597 *to = *from; 598 memmove(to->intrcnt = intrcnt, from->intrcnt, nintr * sizeof (int)); 599 } 600 601 static void 602 dinfo(int dn, int c) 603 { 604 double words, atime; 605 606 c = DISKCOL + c * 5; 607 608 /* time busy in disk activity */ 609 atime = (double)cur.dk_time[dn].tv_sec + 610 ((double)cur.dk_time[dn].tv_usec / (double)1000000); 611 612 words = cur.dk_bytes[dn] / 1024.0; /* # of K transferred */ 613 614 putint((int)((float)cur.dk_seek[dn]/etime+0.5), DISKROW + 1, c, 5); 615 putint((int)((float)cur.dk_xfer[dn]/etime+0.5), DISKROW + 2, c, 5); 616 putint((int)(words/etime + 0.5), DISKROW + 3, c, 5); 617 putfloat(atime*100.0/etime, DISKROW + 4, c, 5, 1, 1); 618 } 619
Indexes created Tue Sep 23 21:09:50 GMT 2025